Maximize your vehicle's storage with this 400L Car Rooftop Cargo Box. Ideal for transporting camping gear, sports equipment, luggage, and other bulky essentials, this cargo carrier offers ample space. It features a theft-resistant lock system for enhanced security and a dual-side opening design for convenient loading and unloading from either side, easing concerns about adjacent traffic. Crafted from durable ABS and PC material, it is built for all-weather use. The aerodynamic shape minimizes noise and drag, potentially maintaining vehicle fuel efficiency. Installation is quick and easy on most cars, SUVs, or trucks, utilizing four quick-connecting anchors and two included straps. The box includes two keys that can only be removed when the cover is fully closed and locked, providing peace of mind. Adjustable width ensures a versatile fit.